Lawden, Derek F. <br/><br/>
Mathematics of engineering systems :  linear and non-linear / 
by Derek F. Lawden. 
 - 2d ed. 
 - London :  Methuen,  1959. 
 - viii, 404 p. :  ill. ;  20 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Fourier series.
<br/><br/><label>Dewey Class. No.: </label>515.024621  / LAM 1959